Group ID A number assigned to equipment which defines it as a member of a group when addressed by the burst controller.

GUI Graphical User Interface – A form of graphical shell or user interface to a computer operating system.

H

HDLC High Level Data Link Control – A standard defining how data may be transmit- ted down a synchronous serial link.

HPA High Power Amplifier – The amplifier used in satellite communications to raise the transmit signal to the correct power level prior to transmission to satellite. See also SSPA.

HTTP Hyper Text Transfer Protocol – The Internet standard for World Wide Web (WWW) operation.

Hub The central site of a network which links to a number of satellite earth sites.

 

I

ICMP

Internet Control Message Protocol.

Installation

A program which guides the user through the process of installing an applica-

Wizard

tion.

IF

Intermediate Frequency – In satellite systems, IF frequencies are usually

 

centered around 1200 MHz (L-band), or 70 MHz (video/TV).

IP

Internet Protocol – A format for data packets used on networks accessing the

 

Internet.

ISP

Internet Service Provider – A company providing Internet access.

ITU

International Telecommunications Union.

E-4

Vipersat CDD-564L User’s Guide

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Cables to Go CDM-570L manual Isp